Celsius WG Herbicide - Questions & Answers

Celsius WG Herbicide is labeled to kill several species of clover.

Celsius WG Herbicide can be harmful to some ornamentals as they are sensitive to the chemical.  It should not be used as a over the top in plant beds and spraying should be avoided directly to flowers, shrubs etc

Cesius is only labeled to control Large Crabgrass and there are other varieties such as hairy and smooth that are not on the label as listed weeds it will control.  That could be why some are not having the success they would when using for the specific type of crabgrass they have.  Unfortunately, we are unaware of a selective post-emergent herbicide to control crabgrass in a St Augustine lawn.  St. Augustine is a very fragile grass, and so most selective products that are labeled to remove crabgrass and not harm your grass.  It is recommended to kill the crabgrass with a round up type product, like GlyPhoSel Pro, which will also kill just the St. Augustine around the crabgrass that it is sprayed on, and then a couple weeks later re-seed those areas with new St. Augustine.

For long term control though, you should apply a pre-emergent in the late fall and early spring which will prevent new crabgrass from coming up next year.  If you apply pre-emergent every year, you should not have issues with crabgrass long term.  Dimension 2EW is one of our most popular pre-emergents for crabgrass.

With Celsius WG Herbicide, you will use .113 oz. of product per gallon of water. This product is labeled for use in bermuda grass so no it will not harm your grass.

Celsius WG Herbicide is a post-emergent herbicide that is safe to apply to your St. Augustine lawn and is labeled to eradicate oxalis (yellow woodsorrel).

Celsius WG Herbicide states on the product label: Apply spray mixtures of this product within 5 days of mixing to avoid product degradation

Yes, Celsius WG Herbicide is labeled to control dallisgrass in various turf types. 

Celsius WG Herbicide can be tank mixed with other herbicides.  You will want to check the label of the MSM product that you plan to use to see if it allows for tank mixing as well.  It is also recommended to do a tank mix test before applying to be sure that there is no clumping. 

 Celsius WG Herbicide is not labeled for goosegrass. Southern Ag Vantage Grass killer is a great product to eradicate goos grass. Please refer to the product label to make sure the type of turf you are applying to is tolerant to this product.

Yes, Celsius WG Herbicide is safe for zoysia grass if used as directed on the product label.  

There is no waiting period to fertilize after you apply Celsius WG.

Celsius WG Herbicide should not be kept in the refridgerator, it should be kept in a cool dry place out of direct sunlight.  The manufacturer warranties their product for 5 years from the date of manufacturer when stored properly, so it can last up to 5 years in approved storage settings. You can confirm this with the manufacturer. You can reach Bayer by calling 800-331-2867. 

Celsius will not remove bermuda from St Augustine grass as the label states it is safe for use on both turf types. If you are looking to remove bermuda from St Augustine grass there are very few products on the marke that will do that in general, much less on the most sensitive version of St Aug which is Floratam. Prograss EC Herbicide is one of the few listed specifically for removing bermuda from St Augustine lawns. 

Celsius WG Herbicide should not be sprayed near desirable plants, trees and shrubs as it can harm them.

Celsius WG is a great post-emergent selective herbicide to apply on St. Augustine lawns for treating Florida pusley. Please refer to the product label for full mixing and application instructions.

As with most herbicides the exact volume of water is not very important, you just need to be sure you are getting the correct amount of product on a specific area. Celsius WG Herbicide may be applied at three different rates depending on the weeds to be controlled. For the appropriate rate and species consult USE RATES FOR WEED CONTROL section on the Celsius product label. For spot applications, add the specified product rate of 0.057-0.113 oz (1.6-3.2g) to enough water to create approximately 1 gallon spray solution. One gallon of spray solution will treat up to 1,000 sq ft. For maximum weed control with broadcast applications, add non-ionic surfactant.

Unfortunately, Celsius WG Herbicide should NOT be used on Bahiagrass or any other cool season turf grasses.

Celsius WG Herbicide is not labeled to be applied where animals will graze. Please contact your local cooperative extension office for more information on what would be a safe choice that will fit your needs.

Celsius WG Herbicide is mixed with water and applied in a hand pump or backpack sprayer. The exact rate will depend on what type(s) of weeds you are treating for.  We recommend that you add 1/2 gallon of water and the amount of product and agitate first then add remaining 1/2 gallon prior to application.
 

For certain weeds, a second application of Celsius WG Herbicide can be made 2-4 weeks after the initial application may be needed for complete weed control. Total amount of product applied in a calendar year (365 days) must not exceed 7.4 oz (210 g) of product per acre.